The chart below shows the percentage of gaving birth of first child by australian women from 1986 to 2006.
Overall at the beginning of the period given the 15-24 demographic was the highest in comparison the 40plus age category was the lowest sector .Nevertheless at the end of the period the 30-34 age group became the highest one comparing to other sectors.
Those in the 15-24 category accounted about 60% in 1996 of first childbirth higher than 5 others ,however it decreased to 40 % in 20 years ,and at the end in 2006 it dropped to 30 % . Percentage of Individuals over the age of 40 was approximately 3-4 percent and in 2 decades dropped even lower. In the beginning of this trend people aged 30-34 observed about 10 % which considered as the second lowest from all given parts,but in 20 years the 30-34 age group noticeable grew and in 2 decades it had been dramatically grown and became as the 3rd highest group.
In the interim, in the beginning of experiment, young people who do not 18 yet accounted about 30 % after what showed incremental decrease over the years,and finished at 10 % in 2006. Those above 40 at 1-2 % and over the period remained the lowest part in comparison with others.
